00550naa#a2200193#i#450# EN\\bibl\12094 20250112071726.7 1609-3178 20160624b2016####ek#y0engy0150####ca RUS RU Chemetall Products Applications at the Liquid Penetrant Testing Lines in Russia Journal article Saint-Petersburg LLC SVEN 2016 2 с. Journal article local Leyfer Josef Krivalev Igor Sayfutdinov Sagit zh-szf.ru